Thanks, I agree with you that it sounds a bit bizzy sometimes but I think the intro is ok.
I think keeping the intro halfway the same makes people recognize the track as Big Boss so they immediately know it is a DnB remix.
But I think it also depends on the producers taste or "style" what to do.
Good attempt, i think you should fatten up those drums tho, like they are kicking you in the face.
Lose the reverb on the snare, or atleast a tiny bit of reverb, and on the second drop at 2.53 you can hear the original snare before it kicks in, you should probably remove that or either cut that part.